501500149 has 2 divisors, whose sum is σ = 501500150. Its totient is φ = 501500148.

The previous prime is 501500141. The next prime is 501500189. The reversal of 501500149 is 941005105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407313124 + 94187025 = 20182^2 + 9705^2 .

It is a cyclic number.

It is not a de Polignac number, because 501500149 - 2³ = 501500141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501500141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250750074 + 250750075.

It is an arithmetic number, because the mean of its divisors is an integer number (250750075).

Almost surely, 2^501500149 is an apocalyptic number.

It is an amenable number.

501500149 is a deficient number, since it is larger than the sum of its proper divisors (1).

501500149 is an equidigital number, since it uses as much as digits as its factorization.

501500149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 501500149 is about 22394.1990033133. The cubic root of 501500149 is about 794.4935128134.

The spelling of 501500149 in words is "five hundred one million, five hundred thousand, one hundred forty-nine".